diff --git a/src/vendorcode/mediatek/mt8192/dramc/dramc_dvfs.c b/src/vendorcode/mediatek/mt8192/dramc/dramc_dvfs.c
index 7c74d4b293..8d921eca3d 100644
--- a/src/vendorcode/mediatek/mt8192/dramc/dramc_dvfs.c
+++ b/src/vendorcode/mediatek/mt8192/dramc/dramc_dvfs.c
@@ -1260,12 +1260,10 @@ void DVS_DMY_RD_EXIT(DRAMC_CTX_T *p)
 
 void DPMEnableTracking(DRAMC_CTX_T *p, U32 u4Reg, U32 u4Field, U8 u1ShuIdx, U8 u1Enable)
 {
-	U32 val, fld;
+	U32 fld;
 
 	fld = Fld(1, (Fld_shft(u4Field) + u1ShuIdx));
 
-	val = (u1Enable) ? 1 : 0;
-
 	vIO32WriteFldAlign_All(u4Reg, u1Enable, fld);
 }
 
@@ -2218,4 +2216,3 @@ void ShuffleDfsToFSP1(DRAMC_CTX_T *p)
 		cbt_switch_freq(p, CBT_HIGH_FREQ);
 	}
 }
-
diff --git a/src/vendorcode/mediatek/mt8192/dramc/dramc_pi_basic_api.c b/src/vendorcode/mediatek/mt8192/dramc/dramc_pi_basic_api.c
index ffdf3d6850..e574078d85 100644
--- a/src/vendorcode/mediatek/mt8192/dramc/dramc_pi_basic_api.c
+++ b/src/vendorcode/mediatek/mt8192/dramc/dramc_pi_basic_api.c
@@ -296,20 +296,10 @@ static void SetDramInfoToConf(DRAMC_CTX_T *p)
 void UpdateDFSTbltoDDR3200(DRAMC_CTX_T *p)
 {
 #if(FOR_DV_SIMULATION_USED==0 && SW_CHANGE_FOR_SIMULATION==0)
-	EMI_SETTINGS *emi_set;
 	U16 u2HighestFreq = u2DFSGetHighestFreq(p);
 	DRAM_PLL_FREQ_SEL_T highestfreqsel = 0;
 	U8 u1ShuffleIdx = 0;
 
-#if (!__ETT__)//preloader
-	if(emi_setting_index == -1)
-		emi_set = &default_emi_setting;
-	else
-		emi_set = &emi_settings[emi_setting_index];
-#else//ett
-	emi_set = &default_emi_setting;
-#endif
-
 	// lookup table to find highest freq
 	highestfreqsel = GetSelByFreq(p, u2HighestFreq);
 	for (u1ShuffleIdx = DRAM_DFS_SHUFFLE_1; u1ShuffleIdx < DRAM_DFS_SHUFFLE_MAX; u1ShuffleIdx++)
diff --git a/src/vendorcode/mediatek/mt8192/dramc/dramc_top.c b/src/vendorcode/mediatek/mt8192/dramc/dramc_top.c
index aa4f2ef297..2d8e990ff2 100644
--- a/src/vendorcode/mediatek/mt8192/dramc/dramc_top.c
+++ b/src/vendorcode/mediatek/mt8192/dramc/dramc_top.c
@@ -413,10 +413,8 @@ void switch_dramc_voltage_to_auto_mode(void)
 #ifdef COMBO_MCP
 static int mt_get_mdl_number(void)
 {
-	static int found = 0;
 	static int mdl_number = -1;
 
-	found = 1;
 	mdl_number = get_ddr_geometry();
 
 	return mdl_number;
@@ -1195,4 +1193,3 @@ unsigned int get_mr8_by_mrr(U8 channel, U8 rank)
 	return (mr8_value & 0xff);
 }
 #endif
-
diff --git a/src/vendorcode/mediatek/mt8192/dramc/emi.c b/src/vendorcode/mediatek/mt8192/dramc/emi.c
index c440b0091d..c7bebda106 100644
--- a/src/vendorcode/mediatek/mt8192/dramc/emi.c
+++ b/src/vendorcode/mediatek/mt8192/dramc/emi.c
@@ -585,9 +585,6 @@ void get_rank_size_by_emi(unsigned long long dram_rank_size[DRAMC_MAX_RK])
 	unsigned long long ch0_rank0_size, ch0_rank1_size;
 	unsigned long long ch1_rank0_size, ch1_rank1_size;
 	unsigned int cen_emi_conh = mt_emi_sync_read(EMI_CONH);
-	unsigned long long dq_width;
-
-	dq_width = 2;
 
 	dram_rank_size[0] = 0;
 	dram_rank_size[1] = 0;
diff --git a/src/vendorcode/mediatek/mt8192/include/dramc_common.h b/src/vendorcode/mediatek/mt8192/include/dramc_common.h
index 599ebe935f..eb67fe2a52 100644
--- a/src/vendorcode/mediatek/mt8192/include/dramc_common.h
+++ b/src/vendorcode/mediatek/mt8192/include/dramc_common.h
@@ -55,7 +55,7 @@
 
 #if CALIBRATION_LOG
 #define msg(_x_...)	{ print(_x_); }
-#define msg2(_x_...)	// { print(_x_); }
+#define msg2(_x_...)	{ if (0) { print(_x_); } }
 #define err(_x_...) 	{ print(_x_); }
 #else
 #define msg(_x_...)
@@ -65,10 +65,10 @@
 
 #define info(_x_...) msg(_x_)
 
-#define msg3(_x_...) // { print(_x_); }
+#define msg3(_x_...) { if (0) { print(_x_); } }
 #define msg4(_x_...)
 #define msg5(_x_...)
-#define jv_msg(_x_...)
+#define jv_msg(_x_...) { if (0) { print(_x_); } }
 #if EYESCAN_LOG
 #define eye_msg(_x_...) { print(_x_); }
 #else
diff --git a/src/vendorcode/mediatek/mt8192/include/x_hal_io.h b/src/vendorcode/mediatek/mt8192/include/x_hal_io.h
index ef75df9f80..b7795b957d 100644
--- a/src/vendorcode/mediatek/mt8192/include/x_hal_io.h
+++ b/src/vendorcode/mediatek/mt8192/include/x_hal_io.h
@@ -65,6 +65,7 @@ extern void vIO32Write4B_All2(DRAMC_CTX_T *p, U32 reg32, U32 val32);
 	UINT16 upk = 1; \
 	INT32 msk = (INT32)(list); \
 	{ upk = 0; \
+	 (void)upk; \
     ((U32)msk == 0xffffffff)? (vIO32Write4B(reg32, (list))): (((U32)msk)? vIO32Write4BMsk(reg32, (list), ((U32)msk)):(U32)0); \
 	} \
 }/*lint -restore */
@@ -80,6 +81,7 @@ extern void vIO32Write4B_All2(DRAMC_CTX_T *p, U32 reg32, U32 val32);
 	UINT16 upk = 1; \
 	INT32 msk = (INT32)(list); \
 	{ upk = 0; \
+	(void)upk; \
     ((U32)msk == 0xffffffff)? (vIO32Write4B_All(reg32, (list))): (((U32)msk)? vIO32Write4BMsk_All(reg32, (list), ((U32)msk)): (void)0); \
 	} \
 }/*lint -restore */